FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene belongs to the G-protein coupled receptor 2 family, and the subfamily of corticotropin releasing hormone receptor. This receptor shows high affinity for corticotropin releasing hormone (CRH), and also binds CRH-related peptides such as urocortin. CRH is synthesized in the hypothalamus, and plays an important role in coordinating the endocrine, autonomic, and behavioral responses to stress and immune challenge. Studies in mice suggest that this receptor maybe involved in mediating cardiovascular homeostasis. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.[provided by RefSeq, Jan 2011] PHENOTYPE: Homozygous inactivation of this gene may result in hypersensitivity to stress, increased anxiety-like behavior, abnormal homeostatic responses to challenges of increased dietary fat and cold, and cardiovascular abnormalities, including hypertension and decreased cardiac contractility. [provided by MGI curators]